sync code with last improvements from OpenBSD
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lib/libXmu/include/X11/Xmu/Xct.h
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lib/libXmu/include/X11/Xmu/Xct.h
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/*
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Copyright 1989, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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*/
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#ifndef _Xct_h
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#define _Xct_h
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#include <X11/Xfuncproto.h>
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#define XctVersion 1
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typedef unsigned char *XctString;
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typedef enum {
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XctUnspecified,
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XctLeftToRight,
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XctRightToLeft
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} XctHDirection;
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typedef unsigned long XctFlags;
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/* These are bits in XctFlags. */
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#define XctSingleSetSegments 0x0001
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/* This means that returned segments should contain characters from only
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* one set (C0, C1, GL, GR). When this is requested, XctSegment is never
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* returned, instead XctC0Segment, XctC1Segment, XctGlSegment, and
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* XctGRSegment are returned. C0 and C1 segments are always returned as
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* singleton characters.
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*/
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#define XctProvideExtensions 0x0002
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/* This means that if the Compound Text string is from a higher version
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* than this code is implemented to, then syntactically correct but unknown
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* control sequences should be returned as XctExtension items. If this
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* flag is not set, and the Compound Text string version indicates that
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* extensions cannot be ignored, then each unknown control sequence will be
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* reported as an XctError.
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*/
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#define XctAcceptC0Extensions 0x0004
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/* This means that if the Compound Text string is from a higher version
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* than this code is implemented to, then unknown C0 characters should be
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* treated as if they were legal, and returned as C0 characters (regardless
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* of how XctProvideExtensions is set). If this flag is not set, then all
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* unknown C0 characters are treated according to XctProvideExtensions.
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*/
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#define XctAcceptC1Extensions 0x0008
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/* This means that if the Compound Text string is from a higher version
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* than this code is implemented to, then unknown C0 characters should be
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* treated as if they were legal, and returned as C0 characters (regardless
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* of how XctProvideExtensions is set). If this flag is not set, then all
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* unknown C0 characters are treated according to XctProvideExtensions.
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*/
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#define XctHideDirection 0x0010
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/* This means that horizontal direction changes should be reported as
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* XctHorizontal items. If this flag is not set, then direction changes are
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* not returned as items, but the current direction is still maintained and
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* reported for other items.
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*/
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#define XctFreeString 0x0020
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/* This means that XctFree should free the Compound Text string (that was
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* passed to XctCreate. If this flag is not set, the string is not freed.
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*/
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#define XctShiftMultiGRToGL 0x0040
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/* Translate GR segments on-the-fly into GL segments for the GR sets:
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* GB2312.1980-1, JISX0208.1983-1, and KSC5601.1987-1.
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*/
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/* This is the return type for XctNextItem. */
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typedef enum {
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XctSegment, /* used when XctSingleSetSegments is not requested */
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XctC0Segment, /* used when XctSingleSetSegments is requested */
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XctGLSegment, /* used when XctSingleSetSegments is requested */
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XctC1Segment, /* used when XctSingleSetSegments is requested */
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XctGRSegment, /* used when XctSingleSetSegments is requested */
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XctExtendedSegment, /* an extended segment */
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XctExtension, /* used when XctProvideExtensions is requested */
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XctHorizontal, /* horizontal direction or depth change */
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XctEndOfText, /* end of text string */
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XctError /* syntactic or semantic error */
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} XctResult;
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typedef struct _XctRec {
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XctString total_string; /* as given to XctCreate */
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int total_length; /* as given to XctCreate */
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XctFlags flags; /* as given to XctCreate */
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int version; /* indicates the version of the CT spec
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* the string was produced from */
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int can_ignore_exts;/* non-zero if ignoring extensions is
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* acceptable, else zero */
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XctString item; /* item returned from XctNextItem */
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unsigned item_length; /* length of item in bytes */
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int char_size; /* number of bytes per character in
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* item, with zero meaning variable */
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char *encoding; /* Encoding name for item */
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XctHDirection horizontal; /* direction of item */
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unsigned horz_depth; /* current direction nesting depth */
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char *GL; /* "{I} F" string for current GL */
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char *GL_encoding; /* Encoding name for current GL */
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int GL_set_size; /* 94 or 96 */
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int GL_char_size; /* number of bytes per GL character */
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char *GR; /* "{I} F" string for current GR */
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char *GR_encoding; /* Encoding name for current GR */
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int GR_set_size; /* 94 or 96 */
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int GR_char_size; /* number of bytes per GR character */
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char *GLGR_encoding; /* Encoding name for current GL+GR,
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* if known */
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struct _XctPriv *priv; /* private to parser, don't peek */
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} *XctData;
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/* these are the external routines */
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_XFUNCPROTOBEGIN
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XctData XctCreate
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(
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_Xconst unsigned char *string,
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int length,
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XctFlags flags
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);
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XctResult XctNextItem
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(
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XctData data
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);
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void XctFree
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(
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XctData data
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);
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void XctReset
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(
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XctData data
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);
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_XFUNCPROTOEND
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#endif /* _Xct_h */
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